Fix elftoolchain tools in-tree build

 * make variables static
 * add header for uint*_t typedefs


git-svn-id: svn+ssh://svn.freebsd.org/base/head@275369 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Temporarily disable non-FreeBSD NT_ note types


git-svn-id: svn+ssh://svn.freebsd.org/base/head@275370 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Track libarchive API change


git-svn-id: svn+ssh://svn.freebsd.org/base/head@275371 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f